About: http://webisa.webdatacommons.org/411521355

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They functioned as manuals of playing techniques, surveys of the previous year???s sporting achievements, and are a valuable resource for studying the development of athletic equipment.
http://www.w3.org/ns/prov#wasQuotedFrom	loc.gov